关键词: 供需曲线 , 交易费用 , 制度化供需模型 , 资产增值不可能三角

Abstract:  The basic analytical tool of neoclassical economics is demand and supply model，but the real economy events are over simplified in this model，the missing link is transactional cost or institutional arrangementBased on study review on assetincome theory conducted by Irving Fisher，neoinstitutional economics and contract theory conducted by Steven NSCheung，this paper develops an institutionalized demandsupply (IDS) model which concludes a transaction cost curveBy using the IDS model，several innovative conclusions are conducted，including as follows: the existence of impossible triangle in the process of appreciation of asset value，the two kinds of mirror image relationship of the demand curve，the erosion ability of organization factor caused by demand elasticity，transactional cost actually defines the scale boundary and the market scale of the asset transaction

Key words: supply and demand curves , transactional cost , supply and demand model , the impossible triangle in asset value adding process